EXHIBIT 31.2


                          CERTIFICATION


I, Diane C.A. Rosler, Chief Financial Officer, certify that:

     1.   I have reviewed this quarterly report on Form 10Q for the
period ended June 30, 2010, of First Keystone Corporation;

     2.   Based on my knowledge, this report does not contain any
untrue statement of a material fact or omit to state a material fact
necessary to make the statements made, in light of the circumstances
under which such statements were made, not misleading with respect to
the period covered by this report;

     3.   Based on my knowledge, the financial statements, and other
financial information included in this report, fairly present in all
material respects the financial condition, results of operations and
cash flows of the registrant as of, and for, the periods presented in
this report;

     4.   The registrant's other certifying officer(s) and I are
responsible for establishing and maintaining disclosure controls and
procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e))
and internal control over financial reporting (as defined in Exchange
Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

          (a)   Designed such disclosure controls and procedures, or
caused such disclosure controls and procedures to be designed under
our supervision, to ensure that material information relating to the
registrant, including its consolidated subsidiaries, is made known to
us by others within those entities, particularly during the period in
which this report is being prepared;

          (b)   Designed such internal control over financial
reporting, or caused such internal control over financial reporting
to be designed under our supervision, to provide reasonable assurance
regarding the reliability of financial reporting and the preparation
of financial statements for external purposes in accordance with
generally accepted accounting principles;

          (c)   Evaluated the effectiveness of the registrant's
disclosure controls and procedures and presented in this report our
conclusions about the effectiveness of the disclosure controls and
procedures, as of the end of the period covered by this report based
on such evaluation; and

          (d)   Disclosed in this report any change in the
registrant's internal control over financial reporting that occurred
during the registrant's most recent fiscal quarter (the registrant's
fourth fiscal quarter in the case of an annual report) that has
materially affected, or is reasonably likely to materially affect,
the registrant's internal control over financial reporting; and

     5.   The registrant's other certifying officer(s) and I have
disclosed, based on our most recent evaluation of internal control
over financial reporting, to the registrant's auditors and the audit
committee of the registrant's board of directors (or persons
performing the equivalent functions):

          (a)   All significant deficiencies and material weaknesses
in the design or operation of internal control over financial
reporting which are reasonably likely to adversely affect the
registrant's ability to record, process, summarize and report
financial information; and

          (b)   Any fraud, whether or not material, that involves
management or other employees who have a significant role in the
registrant's internal control over financial reporting.



                           /s/ Diane C.A. Rosler

                           Diane C.A. Rosler
                           Senior Vice President
                           and Chief Financial Officer


Date: August 5, 2010